We live in an era of masters, where various fields have their respected greats. For example, in economics, there are Keynes and Samuelson; in enterprise management thought, there is Drucker; in business acumen, Welch; in investment, masters like Buffett, Peter Lynch, and Soros, etc. Their academic attainments, ideological realms, and career achievements far surpass the times in which they lived. And so on... What is a futures contract? What is a stock index futures?